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6 September

2024

Welcome to ONR news

Hello everyone.


Welcome to the latest edition of ONR News, keeping you updated about our work as the UK’s nuclear regulator for safety, security and safeguards.

Rachel Grant

Our newsletter today leads with a statement we have published in response to a recent media report in The Times that wrongly attributed 7,000 design modifications at the Hinkley Point C site to ONR.


Since I last wrote to you at the end of July, important landmarks have been reached for some of our ongoing Generic Design Assessments, with the Rolls-Royce SMR Ltd and the Holtec International SMR designs both successfully completing the respective stages of their processes.


It's pleasing to reflect how the Holtec Step 1 was achieved within one of the quickest ever timeframes, demonstrating our ongoing work as an enabling regulator, endeavouring to be supportive of industry progress provided that safety and security requirements are evidenced.


As ever, we continue to focus on ensuring that our regulation remains effective and proportionate while continually striving to streamline our processes.


Allied to this, it is why we truly value our collaborative engagements with international counterparts and stakeholders to help realise efficiencies and reduce regulatory burden where we can.


This approach was at the heart of last week's visit by US Department of Energy representatives when joint regulatory challenges were explored.


Similarly, our regulatory approach was keenly studied by the Dutch regulator during their UK visit last month, hearing more about our oversight of the construction and regulation of new nuclear in order to take learnings back to the Netherlands.


As always, if you have any comments about ONR, any of the topics included in this newsletter, or our work in general, please get in touch via contact@onr.gov.uk.


Best wishes


Rachel Grant

Director of Policy and Communications

ONR response to article in The Times, 4 September 2024 

We published a statement yesterday following a recent media report that wrongly attributed 7,000 design modifications at the Hinkley Point C site to ONR.

Read more about the range of factors behind the design changes

Rolls-Royce Small Modular Reactor design completes second GDA step 

We recently announced that Rolls-Royce SMR Ltd’s 470 MWe Small Modular Reactor (SMR) design had successfully progressed to the next step of Generic Design Assessment.

Read more about the company's move into Step 3 of the process

International paper establishes artificial intelligence regulatory principles

We have worked with the United States and Canadian regulators to analyse the principles of deploying artificial intelligence within the industry for nuclear safety, security and safeguards.

Read more about this first-of-a-kind collaboration

Holtec International’s Small Modular Reactor completes first step of design assessment

The first step of the Generic Design Assessment (GDA) for Holtec International’s Small Modular Reactor (SMR) design was one of the quickest completed since GDA was introduced in 2006.

Read more about the latest update on the Holtec GDA

Our key role in developing first-ever national guidance for use of gloveboxes at nuclear facilities

We have played a leading part in the publication of new UK-wide standards on using gloveboxes when dealing with special nuclear material.

Read more about our work within the Alpha Resilience and Capability (ARC) group

Our People - Matthew Dingsdale, Mechanical and Structural Integrity Specialist Lead

Matt uses his technical skills to assess the plans for mechanical components within a dutyholder’s safety case submission.

Read more about Matt's work in the nuclear industry since obtaining an aerospace degree

Two improvement notices at Sellafield Limited for hazardous substance shortfalls

We served two improvement notices on Sellafield Limited due to breaches of The Control of Substances Hazardous to Health (COSHH) Regulations 2002 (as amended).


The enforcement action was taken after Sellafield Limited failed to manage the risks of working with nickel nitrate and prevent or adequately control exposure of workers to this hazardous substance in one of its effluent facilities.


These shortfalls did not compromise either nuclear or radiological safety.


Used in the treatment of effluent, nickel nitrate is not radioactive, but is a hazardous substance and could cause harm to the health of a worker exposed to it.

UK/US collaboration focuses on decommissioning journey 

We hosted representatives from the US Department of Energy last week as part of a visit focusing on how we regulate Sellafield Ltd.


Topics of discussion included the hazards and risks associated with the Cumbrian site, emergency response and long-term storage of spent fuel.


We explored joint regulatory challenges and identified future opportunities for collaboration.


Attendees also visited Sellafield where they viewed key facilities including Windscale Pile No. 1 and the Thermal Oxide Reprocessing Plant (THORP).

How a country's culture impacts upon nuclear safety

Cultural traits have an impact on nuclear safety, a Country-Specific Safety Culture Forum held in Japan heard.


Marc McBride, our Deputy Head of Leadership and Management for Safety, attended this OECD Nuclear Energy Agency’s (NEA) launch in Tokyo which detailed how the country was making positive steps forward in its post-Fukushima journey.


Key discussions included how regulators can maintain public trust, the need to develop a culture that encourages open dialogue, and how challenges that are common across different national regulators must be responded to differently according to each country’s specific culture.


Marc said: “I was grateful for the opportunity to attend this meeting with international colleagues and share a UK perspective. The discussions we had were fruitful and will support our respective nations in considering the impact of culture on nuclear safety."

Our London office move

Stakeholders should be aware that our satellite office in London has now changed location after we moved to a new address.


We vacated Windsor House on Victoria Street at the end of July and now operate at 157-197 Buckingham Palace Road, London, SW1W 9SP.


Please also note that the email address for our administration on site has changed to ONRLondon.Office@onr.gov.uk


Our headquarters address in Bootle, Merseyside, and our second satellite office in Cheltenham, remain in operation.

Our mission is to protect society by securing safe nuclear operations

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